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Anodonta oregonensis Lea, 1838

Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 80, pl. 21, fig. 67.
Type(s): HOLOTYPE USNM_86432, Wahlamat R., Oregon.

Anodonta oregonensis — Simpson (1900), Simpson (1914), Ortmann (1914), Burch (1975), R.I. Johnson (1980), ... Whelan et al. (2023), Hopper et al. (2023), Galal-Khallaf et al. (2024), Perkins et al. (2025), FMCS (2025)
Anodonta cygnea — Hannibal (1912)
Anodonta (s.s.) oregonensis — Frierson (1927), Haas (1969)
Beringiana oregonensis — Bogatov & Starobogatov (2001)

Anodon cognata Gould, 1850

Gould, 1850. Proc. Boston Soc. Nat. Hist. 3: 294.
Gould, 1852. U.S. Explor. Exped. 12: 435, figs. 546-546b.
Type(s): HOLOTYPE USNM_5930, Oregon.

Anodonta oregonensis — Simpson (1900), Simpson (1914), Burch (1975), IUCN (2016)
Anodonta cygnea — Hannibal (1912)
Anodonta (s.s.) oregonensis — Frierson (1927), Haas (1969)